**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
25 January 2007 Vol. XX No. 004
______________________________________________________________________
GENERAL INFORMATION:
To receive this information electronically, contact:
ser7@maia.usno.navy.mil or use
MJD = Julian Date - 2 400 000.5 days
UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T)
- 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T)
where pi = 3.14159265... and T is the date in Besselian years.
TT = TAI + 32.184 seconds
DUT1= (UT1-UTC) transmitted with time signals
= +0.0 seconds beginning 22 December 2006 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* As of Bulletin A Vol. XX, No. 004, on 25 January 2007, we have *
* modified the prediction algorithm to improve the polar motion *
* predictions. More details on the algorithm will be provided *
* in the IERS Annual Report. *
**********************************************************************
________________________________________________________________________
The contributed observations used in the preparation of this Bulletin
are available at . The
contributed analysis results are based on data from Very Long Baseline
Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global
Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and
meteorological predictions of variations in Atmospheric Angular
Momentum (AAM).
________________________________________________________________________
COMBINED EARTH ORIENTATION PARAMETERS:
IERS Rapid Service
MJD x error y error UT1-UTC error
" " " " s s
7 1 19 54119 -.05589 .00009 .37693 .00010 .020442 .000011
7 1 20 54120 -.05562 .00009 .37940 .00010 .019221 .000011
7 1 21 54121 -.05554 .00009 .38140 .00009 .017680 .000012
7 1 22 54122 -.05529 .00009 .38308 .00009 .015859 .000012
7 1 23 54123 -.05500 .00009 .38481 .00009 .013818 .000013
7 1 24 54124 -.05475 .00009 .38664 .00009 .011695 .000048
7 1 25 54125 -.05464 .00009 .38867 .00009 .009664 .000057
_______________________________________________________________________
PREDICTIONS:
The following formulas will not reproduce the predictions given below,
but may be used to extend the predictions beyond the end of this table.
x = .0119 - .0819 cos A - .0450 sin A + .0210 cos C + .1373 sin C
y = -.0416 + .0432 cos A - .0734 sin A - .1373 cos C + .0210 sin C
UT1-UTC = -.0109 - .00092 (MJD - 54130) - (UT2-UT1)
where A = 2*pi*(MJD-54125)/365.25 and C = 2*pi*(MJD-54125)/435.
TAI-UTC(MJD 54126) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54125)**0.80 S t = 0.00025 (MJD-54125)**0.75
Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d
Polar coord's 0.004 0.007 0.010 0.013
UT1-UTC 0.0014 0.0024 0.0032 0.0040
MJD x(arcsec) y(arcsec) UT1-UTC(sec)
2007 1 26 54126 -0.0543 0.3905 0.00786
2007 1 27 54127 -0.0540 0.3925 0.00637
2007 1 28 54128 -0.0537 0.3944 0.00518
2007 1 29 54129 -0.0532 0.3963 0.00420
2007 1 30 54130 -0.0526 0.3981 0.00332
2007 1 31 54131 -0.0520 0.3998 0.00242
2007 2 1 54132 -0.0512 0.4016 0.00139
2007 2 2 54133 -0.0505 0.4034 0.00016
2007 2 3 54134 -0.0497 0.4052 -0.00127
2007 2 4 54135 -0.0489 0.4070 -0.00285
2007 2 5 54136 -0.0480 0.4087 -0.00455
2007 2 6 54137 -0.0471 0.4105 -0.00628
2007 2 7 54138 -0.0461 0.4122 -0.00800
2007 2 8 54139 -0.0451 0.4139 -0.00962
2007 2 9 54140 -0.0441 0.4156 -0.01108
2007 2 10 54141 -0.0430 0.4172 -0.01235
2007 2 11 54142 -0.0419 0.4189 -0.01342
2007 2 12 54143 -0.0408 0.4205 -0.01432
2007 2 13 54144 -0.0396 0.4221 -0.01510
2007 2 14 54145 -0.0384 0.4237 -0.01588
2007 2 15 54146 -0.0371 0.4253 -0.01677
2007 2 16 54147 -0.0359 0.4269 -0.01788
2007 2 17 54148 -0.0346 0.4284 -0.01929
2007 2 18 54149 -0.0333 0.4299 -0.02102
2007 2 19 54150 -0.0319 0.4314 -0.02301
2007 2 20 54151 -0.0305 0.4329 -0.02512
2007 2 21 54152 -0.0291 0.4344 -0.02716
2007 2 22 54153 -0.0277 0.4358 -0.02898
2007 2 23 54154 -0.0262 0.4372 -0.03049
2007 2 24 54155 -0.0247 0.4386 -0.03168
2007 2 25 54156 -0.0232 0.4400 -0.03265
2007 2 26 54157 -0.0216 0.4413 -0.03349
2007 2 27 54158 -0.0201 0.4426 -0.03433
2007 2 28 54159 -0.0185 0.4439 -0.03526
2007 3 1 54160 -0.0169 0.4452 -0.03635
2007 3 2 54161 -0.0152 0.4465 -0.03762
2007 3 3 54162 -0.0135 0.4477 -0.03906
2007 3 4 54163 -0.0119 0.4489 -0.04064
2007 3 5 54164 -0.0101 0.4501 -0.04229
2007 3 6 54165 -0.0084 0.4512 -0.04394
2007 3 7 54166 -0.0066 0.4523 -0.04552
2007 3 8 54167 -0.0049 0.4534 -0.04697
2007 3 9 54168 -0.0031 0.4545 -0.04825
2007 3 10 54169 -0.0012 0.4555 -0.04935
2007 3 11 54170 0.0006 0.4566 -0.05030
2007 3 12 54171 0.0025 0.4575 -0.05113
2007 3 13 54172 0.0043 0.4585 -0.05192
2007 3 14 54173 0.0063 0.4594 -0.05276
2007 3 15 54174 0.0082 0.4603 -0.05378
2007 3 16 54175 0.0101 0.4612 -0.05509
2007 3 17 54176 0.0121 0.4621 -0.05673
2007 3 18 54177 0.0140 0.4629 -0.05869
2007 3 19 54178 0.0160 0.4637 -0.06087
2007 3 20 54179 0.0180 0.4644 -0.06310
2007 3 21 54180 0.0201 0.4651 -0.06516
2007 3 22 54181 0.0221 0.4658 -0.06694
2007 3 23 54182 0.0241 0.4665 -0.06836
2007 3 24 54183 0.0262 0.4671 -0.06949
2007 3 25 54184 0.0283 0.4677 -0.07043
2007 3 26 54185 0.0304 0.4683 -0.07133
2007 3 27 54186 0.0325 0.4689 -0.07230
2007 3 28 54187 0.0346 0.4694 -0.07343
2007 3 29 54188 0.0367 0.4698 -0.07474
2007 3 30 54189 0.0389 0.4703 -0.07622
2007 3 31 54190 0.0410 0.4707 -0.07786
2007 4 1 54191 0.0432 0.4711 -0.07958
2007 4 2 54192 0.0453 0.4714 -0.08133
2007 4 3 54193 0.0475 0.4717 -0.08302
2007 4 4 54194 0.0497 0.4720 -0.08461
2007 4 5 54195 0.0519 0.4723 -0.08603
2007 4 6 54196 0.0541 0.4725 -0.08728
2007 4 7 54197 0.0563 0.4727 -0.08835
2007 4 8 54198 0.0585 0.4728 -0.08929
2007 4 9 54199 0.0607 0.4729 -0.09016
2007 4 10 54200 0.0629 0.4730 -0.09105
2007 4 11 54201 0.0651 0.4731 -0.09204
2007 4 12 54202 0.0674 0.4731 -0.09325
2007 4 13 54203 0.0696 0.4731 -0.09476
2007 4 14 54204 0.0718 0.4730 -0.09659
2007 4 15 54205 0.0741 0.4729 -0.09868
2007 4 16 54206 0.0763 0.4728 -0.10090
2007 4 17 54207 0.0785 0.4726 -0.10305
2007 4 18 54208 0.0808 0.4724 -0.10496
2007 4 19 54209 0.0830 0.4722 -0.10654
2007 4 20 54210 0.0852 0.4720 -0.10776
2007 4 21 54211 0.0875 0.4717 -0.10873
2007 4 22 54212 0.0897 0.4713 -0.10959
2007 4 23 54213 0.0919 0.4710 -0.11046
2007 4 24 54214 0.0941 0.4706 -0.11145
2007 4 25 54215 0.0964 0.4702 -0.11259
2007 4 26 54216 0.0986 0.4697 -0.11390
2007 4 27 54217 0.1008 0.4692 -0.11533
2007 4 28 54218 0.1030 0.4687 -0.11685
2007 4 29 54219 0.1052 0.4681 -0.11839
2007 4 30 54220 0.1074 0.4675 -0.11988
2007 5 1 54221 0.1095 0.4669 -0.12126
2007 5 2 54222 0.1117 0.4662 -0.12249
2007 5 3 54223 0.1139 0.4655 -0.12353
2007 5 4 54224 0.1160 0.4648 -0.12439
2007 5 5 54225 0.1182 0.4641 -0.12509
2007 5 6 54226 0.1203 0.4633 -0.12570
2007 5 7 54227 0.1224 0.4624 -0.12630
2007 5 8 54228 0.1245 0.4616 -0.12696
2007 5 9 54229 0.1266 0.4607 -0.12779
2007 5 10 54230 0.1287 0.4598 -0.12887
2007 5 11 54231 0.1308 0.4588 -0.13022
2007 5 12 54232 0.1328 0.4578 -0.13184
2007 5 13 54233 0.1349 0.4568 -0.13361
2007 5 14 54234 0.1369 0.4557 -0.13540
2007 5 15 54235 0.1389 0.4547 -0.13704
2007 5 16 54236 0.1409 0.4536 -0.13838
2007 5 17 54237 0.1429 0.4524 -0.13938
2007 5 18 54238 0.1448 0.4512 -0.14008
2007 5 19 54239 0.1468 0.4500 -0.14060
2007 5 20 54240 0.1487 0.4488 -0.14107
2007 5 21 54241 0.1506 0.4475 -0.14163
2007 5 22 54242 0.1525 0.4462 -0.14234
2007 5 23 54243 0.1543 0.4449 -0.14320
2007 5 24 54244 0.1562 0.4436 -0.14421
2007 5 25 54245 0.1580 0.4422 -0.14529
2007 5 26 54246 0.1598 0.4408 -0.14639
2007 5 27 54247 0.1616 0.4394 -0.14744
2007 5 28 54248 0.1633 0.4379 -0.14840
2007 5 29 54249 0.1650 0.4364 -0.14919
2007 5 30 54250 0.1667 0.4349 -0.14980
2007 5 31 54251 0.1684 0.4334 -0.15021
2007 6 1 54252 0.1701 0.4318 -0.15046
2007 6 2 54253 0.1717 0.4302 -0.15058
2007 6 3 54254 0.1733 0.4286 -0.15067
2007 6 4 54255 0.1749 0.4269 -0.15080
2007 6 5 54256 0.1764 0.4253 -0.15106
2007 6 6 54257 0.1780 0.4236 -0.15154
2007 6 7 54258 0.1794 0.4219 -0.15226
2007 6 8 54259 0.1809 0.4201 -0.15321
2007 6 9 54260 0.1824 0.4184 -0.15433
2007 6 10 54261 0.1838 0.4166 -0.15550
2007 6 11 54262 0.1851 0.4148 -0.15656
2007 6 12 54263 0.1865 0.4130 -0.15740
2007 6 13 54264 0.1878 0.4111 -0.15792
2007 6 14 54265 0.1891 0.4093 -0.15814
2007 6 15 54266 0.1904 0.4074 -0.15814
2007 6 16 54267 0.1916 0.4055 -0.15805
2007 6 17 54268 0.1928 0.4035 -0.15801
2007 6 18 54269 0.1939 0.4016 -0.15811
2007 6 19 54270 0.1951 0.3996 -0.15838
2007 6 20 54271 0.1962 0.3977 -0.15881
2007 6 21 54272 0.1972 0.3957 -0.15935
2007 6 22 54273 0.1983 0.3937 -0.15993
2007 6 23 54274 0.1993 0.3916 -0.16048
2007 6 24 54275 0.2002 0.3896 -0.16093
2007 6 25 54276 0.2012 0.3875 -0.16125
2007 6 26 54277 0.2020 0.3854 -0.16138
2007 6 27 54278 0.2029 0.3834 -0.16133
2007 6 28 54279 0.2037 0.3813 -0.16110
2007 6 29 54280 0.2045 0.3791 -0.16075
2007 6 30 54281 0.2053 0.3770 -0.16035
2007 7 1 54282 0.2060 0.3749 -0.15998
2007 7 2 54283 0.2067 0.3727 -0.15974
2007 7 3 54284 0.2073 0.3706 -0.15971
2007 7 4 54285 0.2079 0.3684 -0.15994
2007 7 5 54286 0.2085 0.3662 -0.16042
2007 7 6 54287 0.2090 0.3640 -0.16107
2007 7 7 54288 0.2095 0.3618 -0.16179
2007 7 8 54289 0.2100 0.3596 -0.16244
2007 7 9 54290 0.2104 0.3574 -0.16290
2007 7 10 54291 0.2107 0.3552 -0.16308
2007 7 11 54292 0.2111 0.3529 -0.16299
2007 7 12 54293 0.2114 0.3507 -0.16268
2007 7 13 54294 0.2117 0.3485 -0.16226
2007 7 14 54295 0.2119 0.3462 -0.16186
2007 7 15 54296 0.2121 0.3440 -0.16159
2007 7 16 54297 0.2122 0.3417 -0.16151
2007 7 17 54298 0.2123 0.3395 -0.16162
2007 7 18 54299 0.2124 0.3372 -0.16189
2007 7 19 54300 0.2124 0.3350 -0.16223
2007 7 20 54301 0.2124 0.3327 -0.16258
2007 7 21 54302 0.2124 0.3304 -0.16286
2007 7 22 54303 0.2123 0.3282 -0.16302
2007 7 23 54304 0.2122 0.3259 -0.16302
2007 7 24 54305 0.2120 0.3237 -0.16285
2007 7 25 54306 0.2118 0.3214 -0.16251
2007 7 26 54307 0.2116 0.3192 -0.16204
2007 7 27 54308 0.2113 0.3169 -0.16150
2007 7 28 54309 0.2109 0.3147 -0.16099
2007 7 29 54310 0.2106 0.3124 -0.16059
2007 7 30 54311 0.2102 0.3102 -0.16040
2007 7 31 54312 0.2097 0.3080 -0.16049
2007 8 1 54313 0.2093 0.3057 -0.16086
2007 8 2 54314 0.2088 0.3035 -0.16145
2007 8 3 54315 0.2082 0.3013 -0.16215
2007 8 4 54316 0.2076 0.2991 -0.16281
2007 8 5 54317 0.2070 0.2969 -0.16329
2007 8 6 54318 0.2063 0.2947 -0.16352
2007 8 7 54319 0.2056 0.2926 -0.16349
2007 8 8 54320 0.2048 0.2904 -0.16325
2007 8 9 54321 0.2040 0.2882 -0.16291
2007 8 10 54322 0.2032 0.2861 -0.16259
2007 8 11 54323 0.2024 0.2840 -0.16241
2007 8 12 54324 0.2015 0.2819 -0.16244
2007 8 13 54325 0.2005 0.2798 -0.16272
2007 8 14 54326 0.1995 0.2777 -0.16322
2007 8 15 54327 0.1985 0.2756 -0.16388
2007 8 16 54328 0.1975 0.2735 -0.16461
2007 8 17 54329 0.1964 0.2715 -0.16535
2007 8 18 54330 0.1953 0.2695 -0.16600
2007 8 19 54331 0.1941 0.2675 -0.16651
2007 8 20 54332 0.1929 0.2655 -0.16686
2007 8 21 54333 0.1917 0.2635 -0.16705
2007 8 22 54334 0.1904 0.2615 -0.16713
2007 8 23 54335 0.1891 0.2596 -0.16718
2007 8 24 54336 0.1878 0.2577 -0.16731
2007 8 25 54337 0.1864 0.2558 -0.16760
2007 8 26 54338 0.1850 0.2539 -0.16814
2007 8 27 54339 0.1836 0.2520 -0.16901
2007 8 28 54340 0.1821 0.2502 -0.17019
2007 8 29 54341 0.1806 0.2484 -0.17165
2007 8 30 54342 0.1790 0.2466 -0.17326
2007 8 31 54343 0.1775 0.2448 -0.17487
2007 9 1 54344 0.1759 0.2431 -0.17630
2007 9 2 54345 0.1742 0.2414 -0.17742
2007 9 3 54346 0.1726 0.2397 -0.17818
2007 9 4 54347 0.1709 0.2380 -0.17864
2007 9 5 54348 0.1691 0.2364 -0.17890
2007 9 6 54349 0.1674 0.2348 -0.17908
2007 9 7 54350 0.1656 0.2332 -0.17932
2007 9 8 54351 0.1638 0.2316 -0.17974
2007 9 9 54352 0.1619 0.2301 -0.18031
2007 9 10 54353 0.1601 0.2286 -0.18101
2007 9 11 54354 0.1582 0.2271 -0.18176
2007 9 12 54355 0.1562 0.2256 -0.18257
2007 9 13 54356 0.1543 0.2242 -0.18333
2007 9 14 54357 0.1523 0.2228 -0.18400
2007 9 15 54358 0.1503 0.2214 -0.18447
2007 9 16 54359 0.1483 0.2201 -0.18472
2007 9 17 54360 0.1462 0.2188 -0.18481
2007 9 18 54361 0.1441 0.2175 -0.18478
2007 9 19 54362 0.1420 0.2163 -0.18462
2007 9 20 54363 0.1399 0.2151 -0.18443
2007 9 21 54364 0.1377 0.2139 -0.18433
2007 9 22 54365 0.1356 0.2128 -0.18444
2007 9 23 54366 0.1334 0.2117 -0.18486
2007 9 24 54367 0.1311 0.2106 -0.18564
2007 9 25 54368 0.1289 0.2096 -0.18678
2007 9 26 54369 0.1267 0.2086 -0.18817
2007 9 27 54370 0.1244 0.2076 -0.18974
2007 9 28 54371 0.1221 0.2067 -0.19127
2007 9 29 54372 0.1198 0.2057 -0.19260
2007 9 30 54373 0.1174 0.2049 -0.19361
2007 10 1 54374 0.1151 0.2041 -0.19430
2007 10 2 54375 0.1127 0.2033 -0.19480
2007 10 3 54376 0.1103 0.2025 -0.19522
2007 10 4 54377 0.1080 0.2018 -0.19571
2007 10 5 54378 0.1055 0.2011 -0.19642
2007 10 6 54379 0.1031 0.2004 -0.19740
2007 10 7 54380 0.1007 0.1998 -0.19861
2007 10 8 54381 0.0982 0.1993 -0.19993
2007 10 9 54382 0.0958 0.1987 -0.20128
2007 10 10 54383 0.0933 0.1982 -0.20262
2007 10 11 54384 0.0908 0.1978 -0.20390
2007 10 12 54385 0.0883 0.1973 -0.20510
2007 10 13 54386 0.0858 0.1969 -0.20621
2007 10 14 54387 0.0833 0.1966 -0.20717
2007 10 15 54388 0.0808 0.1963 -0.20803
2007 10 16 54389 0.0783 0.1960 -0.20886
2007 10 17 54390 0.0757 0.1958 -0.20968
2007 10 18 54391 0.0732 0.1956 -0.21051
2007 10 19 54392 0.0706 0.1954 -0.21145
2007 10 20 54393 0.0681 0.1953 -0.21256
2007 10 21 54394 0.0655 0.1953 -0.21386
2007 10 22 54395 0.0630 0.1952 -0.21539
2007 10 23 54396 0.0604 0.1952 -0.21714
2007 10 24 54397 0.0578 0.1953 -0.21903
2007 10 25 54398 0.0553 0.1953 -0.22093
2007 10 26 54399 0.0527 0.1955 -0.22272
2007 10 27 54400 0.0501 0.1956 -0.22422
2007 10 28 54401 0.0476 0.1958 -0.22542
2007 10 29 54402 0.0450 0.1961 -0.22636
2007 10 30 54403 0.0425 0.1964 -0.22714
2007 10 31 54404 0.0399 0.1967 -0.22784
2007 11 1 54405 0.0373 0.1970 -0.22859
2007 11 2 54406 0.0348 0.1974 -0.22955
2007 11 3 54407 0.0322 0.1979 -0.23072
2007 11 4 54408 0.0297 0.1984 -0.23197
2007 11 5 54409 0.0272 0.1989 -0.23320
2007 11 6 54410 0.0246 0.1994 -0.23436
2007 11 7 54411 0.0221 0.2000 -0.23544
2007 11 8 54412 0.0196 0.2007 -0.23639
2007 11 9 54413 0.0171 0.2013 -0.23714
2007 11 10 54414 0.0146 0.2020 -0.23768
2007 11 11 54415 0.0121 0.2028 -0.23806
2007 11 12 54416 0.0097 0.2036 -0.23830
2007 11 13 54417 0.0072 0.2044 -0.23845
2007 11 14 54418 0.0047 0.2053 -0.23853
2007 11 15 54419 0.0023 0.2062 -0.23864
2007 11 16 54420 -0.0001 0.2071 -0.23886
2007 11 17 54421 -0.0025 0.2081 -0.23931
2007 11 18 54422 -0.0049 0.2091 -0.24003
2007 11 19 54423 -0.0073 0.2102 -0.24098
2007 11 20 54424 -0.0096 0.2113 -0.24215
2007 11 21 54425 -0.0120 0.2124 -0.24344
2007 11 22 54426 -0.0143 0.2136 -0.24473
2007 11 23 54427 -0.0166 0.2148 -0.24578
2007 11 24 54428 -0.0189 0.2160 -0.24649
2007 11 25 54429 -0.0212 0.2173 -0.24693
2007 11 26 54430 -0.0234 0.2186 -0.24720
2007 11 27 54431 -0.0257 0.2199 -0.24743
2007 11 28 54432 -0.0279 0.2213 -0.24773
2007 11 29 54433 -0.0301 0.2227 -0.24825
2007 11 30 54434 -0.0322 0.2241 -0.24901
2007 12 1 54435 -0.0344 0.2256 -0.24997
2007 12 2 54436 -0.0365 0.2271 -0.25103
2007 12 3 54437 -0.0386 0.2287 -0.25210
2007 12 4 54438 -0.0406 0.2303 -0.25307
2007 12 5 54439 -0.0427 0.2319 -0.25385
2007 12 6 54440 -0.0447 0.2335 -0.25449
2007 12 7 54441 -0.0467 0.2352 -0.25493
2007 12 8 54442 -0.0486 0.2369 -0.25513
2007 12 9 54443 -0.0506 0.2386 -0.25513
2007 12 10 54444 -0.0525 0.2404 -0.25503
2007 12 11 54445 -0.0543 0.2422 -0.25483
2007 12 12 54446 -0.0562 0.2440 -0.25464
2007 12 13 54447 -0.0580 0.2459 -0.25457
2007 12 14 54448 -0.0598 0.2478 -0.25464
2007 12 15 54449 -0.0615 0.2497 -0.25485
2007 12 16 54450 -0.0632 0.2516 -0.25530
2007 12 17 54451 -0.0649 0.2536 -0.25594
2007 12 18 54452 -0.0666 0.2556 -0.25670
2007 12 19 54453 -0.0682 0.2576 -0.25741
2007 12 20 54454 -0.0698 0.2596 -0.25797
2007 12 21 54455 -0.0714 0.2617 -0.25827
2007 12 22 54456 -0.0729 0.2638 -0.25836
2007 12 23 54457 -0.0744 0.2659 -0.25832
2007 12 24 54458 -0.0758 0.2681 -0.25828
2007 12 25 54459 -0.0772 0.2702 -0.25835
2007 12 26 54460 -0.0786 0.2724 -0.25865
2007 12 27 54461 -0.0800 0.2746 -0.25922
2007 12 28 54462 -0.0813 0.2769 -0.26005
2007 12 29 54463 -0.0825 0.2791 -0.26099
2007 12 30 54464 -0.0838 0.2814 -0.26193
2007 12 31 54465 -0.0850 0.2837 -0.26287
2008 1 1 54466 -0.0861 0.2860 -0.26365
2008 1 2 54467 -0.0872 0.2883 -0.26422
2008 1 3 54468 -0.0883 0.2907 -0.26457
2008 1 4 54469 -0.0893 0.2931 -0.26469
2008 1 5 54470 -0.0903 0.2954 -0.26464
2008 1 6 54471 -0.0913 0.2978 -0.26445
2008 1 7 54472 -0.0922 0.3003 -0.26424
2008 1 8 54473 -0.0931 0.3027 -0.26409
2008 1 9 54474 -0.0939 0.3051 -0.26412
2008 1 10 54475 -0.0947 0.3076 -0.26436
2008 1 11 54476 -0.0954 0.3101 -0.26480
2008 1 12 54477 -0.0962 0.3126 -0.26545
2008 1 13 54478 -0.0968 0.3151 -0.26624
2008 1 14 54479 -0.0974 0.3176 -0.26713
2008 1 15 54480 -0.0980 0.3201 -0.26805
2008 1 16 54481 -0.0986 0.3226 -0.26892
2008 1 17 54482 -0.0991 0.3251 -0.26965
2008 1 18 54483 -0.0995 0.3277 -0.27014
2008 1 19 54484 -0.0999 0.3303 -0.27043
2008 1 20 54485 -0.1003 0.3328 -0.27060
2008 1 21 54486 -0.1006 0.3354 -0.27075
2008 1 22 54487 -0.1009 0.3380 -0.27101
2008 1 23 54488 -0.1011 0.3405 -0.27149
2008 1 24 54489 -0.1013 0.3431 -0.27223
2008 1 25 54490 -0.1014 0.3457 -0.27314
These predictions are based on all announced leap seconds.
CELESTIAL POLE OFFSET SERIES:
NEOS Celestial Pole Offset Series
MJD dpsi error deps error
(msec. of arc)
54104 -57.65 .46 -2.44 .12
54105 -57.33 .46 -2.29 .12
54106 -57.09 .46 -2.05 .12
54107 -56.97 .41 -1.84 .14
54108 -56.98 .41 -1.78 .14
54109 -57.13 .74 -1.85 .34
54110 -57.37 .38 -1.95 .34
54111 -57.64 .38 -1.96 .34
54112 -57.89 .38 -1.94 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54104 0.148 0.183 -0.142 0.120
54105 0.169 0.183 -0.132 0.120
54106 0.184 0.183 -0.118 0.120
54107 0.183 0.163 -0.091 0.140
54108 0.179 0.163 -0.079 0.140
54109 0.170 0.294 -0.081 0.340
54110 0.158 0.151 -0.105 0.340
54111 0.139 0.151 -0.098 0.340
54112 0.119 0.151 -0.074 0.340
The IERS Conventions recommended software to predict celestial pole
offsets is available at ftp://maia.usno.navy.mil/conventions/chapter5/
ceppred.f and software for the calculation of the dX and dY with
respect to IAU2000A Nutation/Precession Theory can be found at the
web site in section chapter 5.